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Finding the Fourth Proportional to 56,582.70, 78,085.81 and 31,090.65

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Solution

The fourth proportional to 56,582.70, 78,085.81 and 31,090.65 is: 42,906.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,582.70 : 78,085.81 = 31,090.65 : x
  2. Step 2: Convert to fraction form
    56,582.70/78,085.81 = 31,090.65/x
  3. Step 3: Cross multiply
    56,582.70x = 78,085.81 × 31,090.65
  4. Step 4: Simplify right side
    56,582.70x = 2,427,738,894.94
  5. Step 5: Solve for x
    x = 2,427,738,894.94/56,582.70
  6. Step 6: Final answer
    x = 42,906.03

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